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    "numpy 能够帮我们处理处理数值型数据，但是这还不够\n",
    "\n",
    "很多时候，我们的数据除了数值之外，还有字符串，还有时间序列等\n",
    "\n",
    "所以，numpy 能够帮助我们处理数值，但是 pandas 除了处理数值之外(基于numpy)，还能够帮助我们处理其他类型的数据。"
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    "### 1 什么是 Pandas?\n",
    "Pandas的名称来自于面板数据（panel data）和 Python 数据分析（data analysis）。\n",
    "\n",
    "Pandas是一个强大的分析结构化数据的工具集，基于NumPy构建，提供了高级数据结构和数据操作工具，它是使 Python 成为强大而高效的数据分析环境的重要因素之一。"
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